Rod body polishing device for valve rod machining

Abstract

A rod body polishing device for valve rod machining comprises a base, a first sliding groove is formed in the rear portion of the upper side wall of the base, a first moving seat is slidably connected into the first sliding groove, a first motor is installed on one side wall of the base, and the output shaft end of the first motor extends into the first sliding groove and is fixedly connected with a first screw rod; the other end of the first screw penetrates through the first moving seat in a threaded mode and is rotationally connected with the side wall, away from the first motor, of the first sliding groove, and an L-shaped supporting plate is fixedly connected to the upper side wall of the first moving seat. Compared with the prior art, the valve rod polishing device has the advantages that due to the arrangement of the positioning assembly, valve rods with different diameters and lengths can be positioned, the applicability is higher, due to the arrangement of the liquid adding assembly, adding of polishing liquid can be automatically completed without intervention of workers during polishing, the labor intensity of the workers is reduced, and the production efficiency is improved. And the liquid adding speed can be adjusted by changing the rotating speed of the speed adjusting motor, so that the device is more flexible and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stem processing, in particular to a stem body polishing device for valve stem processing. Background Art

[0002] The valve stem is an important part of the valve, used for transmission, connected to the actuator or handle, and directly drives the valve core to move or rotate to achieve the valve opening or closing or regulation. The valve stem is not only a moving part and a force-bearing part during the opening and closing of the valve, but also a sealing part. At the same time, it is impacted and corroded by the medium, and also produces friction with the packing. Therefore, when selecting the valve stem material, it must be ensured that it has sufficient strength, good impact toughness, abrasion resistance, and corrosion resistance at the specified temperature. The valve stem is a wearing part, and the mechanical processing performance and heat treatment performance of the material should also be paid attention to when selecting it. When the valve stem is produced, it is necessary to use a polishing device to polish its stem body to ensure the smoothness and flatness of the valve stem body and reduce friction and wear.

[0003] When polishing valve stems, the current polishing device cannot be used for valve stems of different diameters and lengths, and has low applicability. In addition, workers are required to manually add polishing liquid during polishing, which increases the labor intensity of the workers and poses safety hazards. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a stem body polishing device for valve stem processing to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is a rod polishing device for valve stem processing, comprising a base, a first slide groove is opened on the rear of the upper side wall of the base, a first movable seat is slidably connected in the first slide groove, a first motor is installed on one side wall of the base, an output shaft end of the first motor extends into the first slide groove and is fixedly connected to a first screw, the other end of the first screw threadedly passes through the first movable seat and is rotatably connected to a side wall of the first slide groove away from the first motor, an L-shaped support plate is fixedly connected to the upper side wall of the first movable seat, an electric push rod is installed on the upper inner wall of the L-shaped support plate, the telescopic end of the electric push rod is fixedly connected to a bearing plate, a polishing plate is fixedly connected to the lower side wall of the bearing plate, a positioning component is also provided on the upper side wall of the base, and a liquid adding component is also provided on the bearing plate.

[0006] As an improvement: the positioning assembly includes a second slide groove, a second movable seat, a second screw, a turntable, a vertical plate, a rotating seat and a second motor; a second slide groove is opened on the upper side wall of the base, a second movable seat is slidably arranged in the second slide groove, a second screw is rotatably connected to one side wall of the second slide groove, the other end of the second screw is threaded through the second movable seat and extends to the outside of the base and is fixedly connected to the turntable; a vertical plate is fixedly connected to the upper side wall of the base and the upper side wall of the second movable seat, a rotating seat is rotatably arranged on one side wall of the two vertical plates close to each other, a second motor is installed on one side wall of one of the vertical plates, and the output shaft end of the second motor passes through the vertical plate and is fixedly connected to the rotating seat.

[0007] As an improvement: the positioning assembly also includes a third slide groove, a back plate, a slider, a bidirectional screw, a knob and a clamping block; a third slide groove is opened on a side wall of the rotating seat away from the vertical plate; the middle part of the third slide groove is fixedly connected to the back plate; a bidirectional screw is rotatably provided on the lower side wall of the third slide groove; the upper end of the bidirectional screw rotates through the back plate and extends to the outside of the rotating seat and is fixedly connected to a knob; two symmetrically distributed sliders are threadedly sleeved on the bidirectional screw; the slider is slidably connected to the third slide groove; a clamping block is fixedly connected to a side wall of the slider away from the vertical plate.

[0008] As an improvement: the liquid adding assembly includes a liquid storage cylinder, a blocking plug, a connecting rod, an L-shaped connecting rod, a U-shaped frame, a speed regulating motor, a half-tooth gear and a rack; the liquid storage cylinder is embedded and fixed on the supporting plate; a blocking plug is provided at the lower inner part of the liquid storage cylinder; a connecting rod is fixedly connected to the upper side wall of the blocking plug; the upper end of the connecting rod slides through the upper side wall of the liquid storage cylinder and is fixedly connected to the L-shaped connecting rod; the other end of the L-shaped connecting rod is fixedly connected to the U-shaped frame; a speed regulating motor is also installed on the upper side wall of the supporting plate; the output shaft end of the speed regulating motor is fixedly connected to the half-tooth gear; racks matching the half-tooth gear are fixedly connected to the inner walls on both sides of the U-shaped frame.

[0009] As an improvement: a liquid filling port is provided on the upper side wall of the liquid storage cylinder, and a liquid filling pipe is connected to the lower end of the liquid storage cylinder.

[0010] As an improvement: a rubber pad is provided on one side wall of the two clamping blocks close to each other.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting up the positioning component, the device can position valve stems of various diameters and lengths, and has higher applicability. The setting of the liquid adding component can automatically complete the addition of polishing liquid without the intervention of workers during polishing, thereby reducing the labor intensity of workers, and the liquid adding speed can be adjusted by changing the speed of the speed regulating motor, which is more flexible and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a rod polishing device for valve stem processing according to the utility model;

[0014] Figure 2 This is a schematic diagram of the rotating seat structure of a rod polishing device for valve stem processing according to the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a bearing plate of a rod polishing device for valve stem processing according to the utility model;

[0016] Figure 4 This is a cross-sectional view of a liquid storage cylinder of a rod polishing device for valve stem processing according to the utility model;

[0017] As shown in the figure:

[0018] 1. Base; 1.1. First slide; 1.2. First moving seat; 1.3. First motor; 1.4. First screw; 1.5. L-shaped support plate; 1.6. Electric push rod; 1.7. Loading plate; 1.8. Polishing plate; 2. Positioning assembly; 3. Liquid adding assembly; 2.1. Second slide; 2.2. Second moving seat; 2.3. Second screw; 2.4. Turntable; 2.5. Vertical plate; 2.6. Rotating seat; 2.7. Second Motor; 2.8, third slide; 2.9, butt plate; 2.10, slider; 2.11, bidirectional screw; 2.12, knob; 2.13, clamp; 3.1, liquid storage cylinder; 3.2, blocking plug; 3.3, connecting rod; 3.4, L-shaped connecting rod; 3.5, U-shaped frame; 3.6, speed regulating motor; 3.7, half-tooth gear; 3.8, rack; 3.11, liquid filling port; 3.12, liquid filling tube; 2.131, rubber pad. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 As shown, a stem polishing device for valve stem processing includes a base 1, a first slide groove 1.1 is opened on the rear of the upper side wall of the base 1, a first moving seat 1.2 is slidably connected in the first slide groove 1.1, a first motor 1.3 is installed on one side wall of the base 1, an output shaft end of the first motor 1.3 extends into the first slide groove 1.1 and is fixedly connected with a first screw rod 1.4, the other end of the first screw rod 1.4 is threaded through the first moving seat 1.2 and is rotatably connected to a side wall of the first slide groove 1.1 away from the first motor 1.3, an L-shaped support plate 1.5 is fixedly connected to the upper side wall of the first moving seat 1.2, and the output shaft of the first motor 1.3 can drive the first The screw 1.4 rotates, and when the first screw 1.4 rotates, the first movable seat 1.2 threadedly connected thereto drives the L-shaped support plate 1.5 to move back and forth, thereby causing the polishing plate 1.8 to move back and forth, and comprehensively polishing the valve stem. An electric push rod 1.6 is installed on the upper inner wall of the L-shaped support plate 1.5, and the telescopic end of the electric push rod 1.6 is fixedly connected to a bearing plate 1.7, and the polishing plate 1.8 is fixedly connected to the lower side wall of the bearing plate 1.7. The telescopic end of the electric push rod 1.6 can push the bearing plate 1.7 downward, so that the polishing plate 1.8 contacts the rod body of the valve stem. A positioning component 2 is also provided on the upper side wall of the base 1, and a liquid adding component 3 is also provided on the bearing plate 1.7.

[0023] Specifically, Figure 1As shown, a stem polishing device for valve stem processing, the positioning assembly 2 includes a second slide 2.1, a second moving seat 2.2, a second screw 2.3, a turntable 2.4, a vertical plate 2.5, a rotating seat 2.6 and a second motor 2.7, a second slide 2.1 is provided on the upper side wall of the base 1, a second moving seat 2.2 is slidably provided in the second slide 2.1, a second screw 2.3 is rotatably connected to one side wall of the second slide 2.1, the other end of the second screw 2.3 is threaded through the second moving seat 2.2 and extends to the outside of the base 1 and is fixedly connected to the turntable 2.4, the vertical plate 2.5 is fixedly connected to the upper side wall of the base 1 and the upper side wall of the second moving seat 2.2, and the two vertical plates 2.5 are close to each other A rotating seat 2.6 is rotatably provided on the side wall near the valve body 2.5, and a second motor 2.7 is installed on one side wall of one of the vertical plates 2.5. The output shaft end of the second motor 2.7 passes through the vertical plate 2.5 and is fixedly connected to the rotating seat 2.6. The rotating turntable 2.4 can drive the second screw 2.3 to rotate. When the second screw 2.3 rotates, the second movable seat 2.2 threadedly connected thereto can drive the vertical plate 2.5 on the right to move, so that the distance between the two vertical plates 2.5 can be adjusted to suit valve stems of different lengths. The output shaft of the second motor 2.7 can drive the rotating seat 2.6 on the left to rotate. The rotation of the rotating seat 2.6 will drive the valve stem and the other rotating seat 2.6 to rotate together, so that the valve stem is rotated for polishing.

[0024] Specifically, Figure 2 As shown, a rod body polishing device for valve stem processing, the positioning assembly 2 also includes a third slide groove 2.8, a butt plate 2.9, a slider 2.10, a bidirectional screw 2.11, a knob 2.12 and a clamping block 2.13, a third slide groove 2.8 is opened on a side wall of the rotating seat 2.6 away from the vertical plate 2.5, the middle part of the third slide groove 2.8 is fixedly connected with the butt plate 2.9, a bidirectional screw 2.11 is rotatably provided on the lower side wall of the third slide groove 2.8, the upper end of the bidirectional screw 2.11 rotates through the butt plate 2.9 and extends to the outside of the rotating seat 2.6 and is fixed A knob 2.12 is connected, and two symmetrically distributed sliders 2.10 are threadedly sleeved on the bidirectional screw 2.11. The sliders 2.10 are slidably connected to the third slide groove 2.8. A clamping block 2.13 is fixedly connected to the side wall of the slider 2.10 away from the vertical plate 2.5. Turning the knob 2.12 can drive the bidirectional screw 2.11 to rotate. When the bidirectional screw 2.11 rotates, the two sliders 2.10 threadedly connected thereto can drive the clamping block 2.13 to approach each other. The clamping block 2.13 will clamp one end of the valve stem, which is suitable for fixing valve stems of different diameters.

[0025] Specifically, Figure 3 and Figure 4As shown, a stem polishing device for valve stem processing, the liquid adding assembly 3 includes a liquid storage cylinder 3.1, a blocking plug 3.2, a connecting rod 3.3, an L-shaped connecting rod 3.4, a U-shaped frame 3.5, a speed regulating motor 3.6, a half-toothed gear 3.7 and a rack 3.8, the liquid storage cylinder 3.1 is embedded and fixed on the bearing plate 1.7, the blocking plug 3.2 is arranged at the lower part of the liquid storage cylinder 3.1, the upper side wall of the blocking plug 3.2 is fixedly connected with the connecting rod 3.3, and the connecting rod 3.8 is fixedly connected to the upper side wall of the blocking plug 3.2. .3 slides through the upper side wall of the liquid storage cylinder 3.1 and is fixedly connected to an L-shaped connecting rod 3.4, the other end of the L-shaped connecting rod 3.4 is fixedly connected to a U-shaped frame 3.5, a speed regulating motor 3.6 is also installed on the upper side wall of the carrier plate 1.7, the output shaft end of the speed regulating motor 3.6 is fixedly connected to a half-toothed gear 3.7, and racks 3.8 matching the half-toothed gear 3.7 are fixedly connected to the inner walls of both sides of the U-shaped frame 3.5. When polishing, the speed regulating motor The output shaft of 3.6 can drive the half-tooth gear 3.7 to rotate. When the half-tooth gear 3.7 rotates, under the action of the two racks 3.8, the U-shaped frame 3.5 will drive the L-shaped connecting rod 3.4 to move up and down. When the L-shaped connecting rod 3.4 moves up and down, the connecting rod 3.3 will drive the blocking plug 3.2 to move up and down. When the blocking plug 3.2 moves upward, the polishing liquid in the liquid storage cylinder 3.1 will flow under the blocking plug 3.2 and drip onto the rod body of the valve stem through the liquid adding pipe 3.12. When the blocking plug 3.2 moves downward, the lower end of the liquid storage cylinder 3.1 will be blocked, and the polishing liquid cannot enter under the blocking plug 3.2. As the blocking plug 3.2 continues to move up and down, the polishing liquid is intermittently added to the valve stem rod body. The polishing liquid can be automatically added without manual intervention, reducing the labor intensity of workers. In addition, the liquid adding speed can be adjusted by changing the speed of the speed regulating motor 3.6, which is more flexible and practical.

[0026] Specifically, Figure 4 As shown, a rod body polishing device for valve stem processing, a liquid filling port 3.11 is provided on the upper side wall of the liquid storage cylinder 3.1, polishing liquid is added into the liquid storage cylinder 3.1 through the liquid filling port 3.11, the lower end of the liquid storage cylinder 3.1 is connected with a liquid filling pipe 3.12, and the polishing liquid in the liquid storage cylinder 3.1 drips onto the valve stem rod body through the liquid filling pipe 3.12.

[0027] Specifically, Figure 2 As shown, a stem polishing device for valve stem processing, a rubber pad 2.131 is provided on one side wall of two clamping blocks 2.13 close to each other, to prevent the clamping blocks 2.31 from causing clamping marks on the valve stem.

[0028] When the utility model is implemented, the left end of the valve stem is firstly made to abut against the left abutment plate 2.9, and then the knob 2.12 is turned to drive the bidirectional screw 2.11 to rotate. When the bidirectional screw 2.11 rotates, the two sliders 2.10 threadedly connected thereto can drive the clamping block 2.13 to approach each other. The clamping block 2.13 will clamp the left end of the valve stem, which is suitable for fixing valve stems of different diameters. Then the turntable 2.4 is turned to drive the second screw 2.3 to rotate. When the second screw 2.3 rotates, the second movable seat 2.2 threadedly connected thereto can drive the right vertical plate 2.5 to move, so that the two vertical plates 2.5 can be adjusted. 5, so that the right end of the valve stem abuts against the abutment plate 2.9 on the right, and the right end of the valve stem is clamped by the two clamping blocks 2.13 on the right, so that it is suitable for valve stems of different lengths, has high applicability and is more practical, and then the telescopic end of the electric push rod 1.6 is controlled to extend, and the bearing plate 1.7 is pushed down, so that the polishing plate 1.8 contacts the rod body of the valve stem, and then the second motor 2.7 is started, and the output shaft of the second motor 2.7 can drive the rotating seat 2.6 on the left to rotate, and the rotation of the rotating seat 2.6 will drive the valve stem and the other rotating seat 2.6 to rotate together, and when the valve stem rotates, the polishing plate 1.8 pushes the valve stem During polishing, the output shaft of the first motor 1.3 can drive the first screw 1.4 to rotate. When the first screw 1.4 rotates, the first movable seat 1.2 threadedly connected thereto drives the L-shaped support plate 1.5 to move back and forth, thereby causing the polishing plate 1.8 to move back and forth, and the valve stem is fully polished. During polishing, the output shaft of the speed regulating motor 3.6 can drive the half-tooth gear 3.7 to rotate. When the half-tooth gear 3.7 rotates, under the action of the two racks 3.8, the U-shaped frame 3.5 drives the L-shaped connecting rod 3.4 to move up and down. When the L-shaped connecting rod 3.4 moves up and down, the connecting rod 3.3 drives the blocking plug 3.2 to move up and down. When the blocking plug 3.2 moves upward, the polishing liquid in the liquid storage cylinder 3.1 will flow to the bottom of the blocking plug 3.2 and drip onto the rod body of the valve stem through the liquid adding pipe 3.12. When the blocking plug 3.2 moves downward, the lower end of the liquid storage cylinder 3.1 will be blocked, and the polishing liquid cannot enter the bottom of the blocking plug 3.2. As the blocking plug 3.2 continues to move up and down, the polishing liquid is intermittently added to the valve stem body. The addition of polishing liquid can be automatically completed without manual intervention, reducing the labor intensity of workers, and the liquid adding speed can be adjusted by changing the speed of the speed regulating motor 3.6, which is more flexible and practical.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A valve stem polishing device for machining a valve stem, comprising a base (1), characterized in that: A first slide groove (1.1) is provided at the rear of the upper side wall of the base (1), a first movable seat (1.2) is slidably connected in the first slide groove (1.1), a first motor (1.3) is installed on one side wall of the base (1), an output shaft end of the first motor (1.3) extends into the first slide groove (1.1) and is fixedly connected to a first screw rod (1.4), and the other end of the first screw rod (1.4) is threadedly passed through the first movable seat (1.2) and is separated from the first slide groove (1.1) and away from the first motor (1.3). ), an L-shaped support plate (1.5) is fixedly connected to the upper side wall of the first movable seat (1.2), an electric push rod (1.6) is installed on the upper inner wall of the L-shaped support plate (1.5), a telescopic end of the electric push rod (1.6) is fixedly connected to a bearing plate (1.7), a polishing plate (1.8) is fixedly connected to the lower side wall of the bearing plate (1.7), a positioning component (2) is also provided on the upper side wall of the base (1), and a liquid adding component (3) is also provided on the bearing plate (1.7).

2. The rod polishing device for valve stem processing according to claim 1, characterized in that: The positioning assembly (2) comprises a second slide groove (2.1), a second movable seat (2.2), a second screw rod (2.3), a turntable (2.4), a vertical plate (2.5), a rotating seat (2.6) and a second motor (2.7); a second slide groove (2.1) is provided on the upper side wall of the base (1); a second movable seat (2.2) is slidably provided in the second slide groove (2.1); a second screw rod (2.3) is rotatably connected to one side wall of the second slide groove (2.1); the other end of the second screw rod (2.3) is threadedly passed through the second movable seat (2.2) and extends to the outside of the base (1) and is fixedly connected to the turntable (2.4); the vertical plates (2.5) are fixedly connected to the upper side wall of the base (1) and the upper side wall of the second movable seat (2.2); a rotating seat (2.6) is rotatably provided on one side wall of the two vertical plates (2.5) close to each other. 2.6), a second motor (2.7) is mounted on a side wall of one of the vertical plates (2.5), and an output shaft end of the second motor (2.7) passes through the vertical plate (2.5) and is fixedly connected to the rotating seat (2.6).

3. The rod polishing device for valve stem processing according to claim 2, characterized in that: The positioning assembly (2) further comprises a third slide groove (2.8), a stop plate (2.9), a slider (2.10), a bidirectional screw (2.11), a knob (2.12) and a clamping block (2.13); a third slide groove (2.8) is provided on a side wall of the rotating seat (2.6) away from the vertical plate (2.5); the middle part of the third slide groove (2.8) is fixedly connected to the stop plate (2.9); a bidirectional screw (2.11) is rotatably provided on the lower side wall of the third slide groove (2.8); .11), the upper end of the bidirectional screw (2.11) rotates through the abutment plate (2.9) and extends to the outside of the rotating seat (2.6) and is fixedly connected to a knob (2.12), the upper threaded sleeve of the bidirectional screw (2.11) is provided with two symmetrically distributed sliders (2.10), the sliders (2.10) are slidably connected to the third sliding groove (2.8), and a clamping block (2.13) is fixedly connected to a side wall of the slider (2.10) away from the vertical plate (2.5).

4. The stem polishing device for valve stem processing according to claim 1, characterized in that: The liquid adding assembly (3) comprises a liquid storage cylinder (3.1), a blocking plug (3.2), a connecting rod (3.3), an L-shaped connecting rod (3.4), a U-shaped frame (3.5), a speed regulating motor (3.6), a half-toothed gear (3.7) and a rack (3.8); the liquid storage cylinder (3.1) is embedded and fixed on the bearing plate (1.7); a blocking plug (3.2) is arranged at the lower part of the liquid storage cylinder (3.1); a connecting rod (3.3) is fixedly connected to the upper side wall of the blocking plug (3.2); the connecting rod (3.3) .3) slides through the upper side wall of the liquid storage cylinder (3.1) and is fixedly connected to an L-shaped connecting rod (3.4), the other end of the L-shaped connecting rod (3.4) is fixedly connected to a U-shaped frame (3.5), a speed regulating motor (3.6) is also installed on the upper side wall of the bearing plate (1.7), the output shaft end of the speed regulating motor (3.6) is fixedly connected to a half-toothed gear (3.7), and racks (3.8) matching the half-toothed gear (3.7) are fixedly connected to the inner walls on both sides of the U-shaped frame (3.5).

5. The rod polishing device for valve stem processing according to claim 4, characterized in that: A liquid filling port (3.11) is provided on the upper side wall of the liquid storage cylinder (3.1), and a liquid filling pipe (3.12) is connected to the lower end of the liquid storage cylinder (3.1).

6. The stem polishing device for valve stem processing according to claim 3, characterized in that: A rubber pad (2.131) is provided on one side wall of the two clamping blocks (2.13) that are close to each other.

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